Molding system for preparing an in-mold decorated article
a molding system and in-mold technology, applied in the field of molding systems for preparing in-mold decorated articles, can solve the problems of large number of trial molding operations and long setting time, and achieve the effects of simplifying the numerical solving of the governing equation, rapid simulation, and reducing computing tim
Active Publication Date: 2019-01-31
CORETECH SYST CO LTD
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Benefits of technology
The present invention provides a method for simulating the molding process of fluid molding material to create in-mold decorated article. The method uses a composite simulation approach, which simplifies the governing equations and reduces the computing time compared to the full simulation method. This allows for a more accurate and rapid simulation of the molding phenomena, and can also decrease the computing time by assuming that the movement of the solid decorating film is zero. Overall, the method improves the efficiency and accuracy of the injection molding process.
Problems solved by technology
In general, the setting of molding conditions of the injection molding machine performing the IMD process requires a large number of trial molding operations and a long setting time because the setting work greatly depends on the know-how and experience of an operator of the injection molding machine, and various physical values are interdependent as well.
Method used
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[0044]The following description of the disclosure accompanies drawings, which are incorporated in and constitute a part of this specification, and illustrate embodiments of the disclosure, but the disclosure is not limited to the embodiments. In addition, the following embodiments can be properly integrated to complete another embodiment.
[0045]References to “one embodiment,”“an embodiment,”“exemplary embodiment,”“other embodiments,”“another embodiment,” etc. indicate that the embodiment(s) of the disclosure so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in the embodiment” does not necessarily refer to the same embodiment, although it may.
[0046]The present disclosure is directed to a molding system for preparing an in-mold decorated article using a computer-aided engineering (CAE) simulation. In order to make the presen...
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Abstract
A molding system comprises a mold, a molding machine, a computing apparatus, and a controller. The computing apparatus is programmed to perform a first simulation to generate a velocity distribution and a temperature distribution of the molding material in a first portion of a simulating domain and a second simulation to generate a melting distribution of the solid decorating film in a second portion of the simulating domain, wherein the simulating domain corresponds to the mold cavity. The first molding simulation is to performed using a molding condition of the molding machine to set a boundary condition of the first portion, and the second molding simulation is performed using the velocity distribution and the temperature distribution of the molding material to set a boundary condition of the second portion.
Description
PRIORITY CLAIM AND CROSS-REFERENCE[0001]This application is a continuation-in-part application of U.S. patent application Ser. No. 15 / 662,859, filed Jul. 28, 2017, which is incorporated herein by reference in its entirety.TECHNICAL FIELD[0002]The present disclosure relates to a molding system for preparing an in-mold decorated article using a computer-aided engineering (CAE) simulation.DISCUSSION OF THE BACKGROUND[0003]Injection molding is a technology commonly used for high-volume manufacturing of parts made of meltable material, most commonly of parts made of thermoplastic polymers. Some plastic articles have decorative patterns thereon for aesthetic considerations. An In-Mold-Decoration (IMD) technology is developed to prepare the plastic articles with decorative patterns. In-mold decoration processes involve decorating articles as they are Formed, in mold, of a heated plastic material that is injected into a mold cavity. Usually a tape or strip of a decorative or protective mate...
Claims
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IPC IPC(8): B29C45/76G06F17/50B29C45/77B29C45/78
CPCB29C45/7693G06F17/5009B29C45/7613B29C45/77B29C45/78G06F2217/41B29C45/14778G06F2113/22G06F30/20
Inventor HSU, CHIH-CHUNGSU, TUNG-HUANCHIU, HSIEN-SENHSU, CHIA-HSIANGCHANG, RONG-YEU
Owner CORETECH SYST CO LTD